Interface Name: Replace the default value in the Interface Name field with a meaningful name for the interface list.Default: Parent interface name, which you must replace.

Description: (Optional) Enter a text string to help identify the interface.

In Speed and Out Speed: (Optional) Identify the speed of data that is inbound to the parent interface and outbound from the parent interface.

Type: (Optional) Select the interface type from the list.

Domain: Select a tenant-domain combination from the list or accept the default setting. Changing the domain can affect which operators and reports have access to the data. The Domain option is visible only in an environment that contains multiple domains.

Subnet: Enter a subnet and mask identification for each subnet filter you want to use for this CVI, then click Add. Use the format:<subnet IP address/subnet mask> The CVI must contain at least one subnet filter.

Click Save. The Custom Virtual Interface is automatically deployed within one minute. The Class icon for the new CVI distinguishes it from the physical interfaces.